What role does the main sequence mass of the star play in the formation of heavy elements in the giant stage?
What will be an ideal response?
Basically the greater the mass of the atomic nucleus, the higher the temperature will be needed to forge it. This means more massive stars, with greater gravity to provide contractive energy at the core, will reach higher final temperatures and thus create larger amounts of heavy elements than less massive stars.
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What part of the Sun's aging process will disrupt the biosphere and evaporate the oceans of Earth?
a. the fusion of hydrogen in the core b. an increase in luminosity as the core becomes helium-enriched c. the expansion of the outer layers of the Sun as a red giant d. the supernova explosion caused by the collapse of the iron core e. hydrogen detonation on the white dwarf remnant
Satellite Motion: Suppose our sun had 4 times its present mass but the earth orbited it at the same distance as it presently does. What would be the length of the year on the earth under those conditions?
A. 1/4 as long as the present year B. 1/2 as long as the present year C. the same as the present year D. twice as long as the present year E. four times as long as the present year
The constellations of the zodiac fall along
A) the ecliptic. B) the celestial equator. C) lines of longitude. D) lines of latitude.
The direction of the force on a current-carrying wire in a magnetic field is described by which of the following?
A) parallel to the current only B) parallel to the magnetic field only C) perpendicular to the current only D) perpendicular to the magnetic field only E) perpendicular to both the current and the magnetic field